Version: 5.3
16 Lazy Require
This library is unstable;
compatibility will not be maintained.
See Unstable: May Change Without Warning for more information.
| (require unstable/lazy-require) |
syntax
(lazy-require [mod (imported-fun-id ...)] ...)
mod = module-path | ,module-path-expr
module-path-expr : module-path?
Defines each imported-fun-id as a function that, when called,
dynamically requires the export named 'imported-fun-id from
the module specified by mod and calls it with the same
arguments.
The module mod can be specified as a module-path (see require) or as an unquote-escaped expression that computes a module path. As with define-runtime-module-path-index, a module-path-expr is evaluated both in phase 0 and phase 1.
syntax
(begin-on-demand #:export (fun-id ...) body ...+)
Defines each fun-id as a function that, when called,
dynamically loads and executes the body forms. The
body forms must contain definitions for each fun-id,
and the value of each fun-id must be a function.
A body form may be any module-level form except provide. In particular, require forms are allowed.
The body forms are placed within a submodule that extends the scope of the enclosing module (ie, module* with #f in the language position). Consequently, any references to sibling submodules must include a with ".." module path element.